Tagged Questions

0
votes
0answers
13 views

DRBD mount randomly unmounts itself

We have setup setup an NFS HA "cluster" using drbd/heartbeat. Everything works as expected when tested... If the instance nfs1 goes down, nfs2 picks up and everything seems to be fine. On both ...
0
votes
1answer
66 views

Configure DRBD and Heartbeat on Cpanel

I am working to setup a high availability cPanel server. I have two servers on same data center. The cPanel server has got 150 websites and 15 ip addresses where 1 is main shared ip and 14 other ...
1
vote
1answer
62 views

DBRD dual primary Heartbeat resource management

I have the following setup: Two servers with DRBD running dual primary with OCFS2 Heartbeat with two virtual ips, one for each server Round robin DNS to load balance NFS across the two vIPs ...
2
votes
5answers
321 views

DRBD with MySQL

Question about using DRBD to provide HA for MySQL. I need to be sure that my backup MySQL instance is always going to be in a functional state when the failover occurs. What happens, for example, ...
1
vote
0answers
116 views

DRBD heartbeat's resource role trouble in centos 5.4 by mysql files owner change?

I am using 2 machines with centos,mysql,drbd,heartbeat,asterisk. node 1 has hdc :SAMSUNG HD160JJ/P, ATA DISK drive kernel version 1 SMP Tue Aug 21 17:50:26 EDT 2012 kernel release ...
1
vote
1answer
363 views

NFS failover WITHOUT DRBD?

So I am trying to set up a redundant NFS share in a cloud environment(all links internal, half gig links), and I am looking into using heartbeat for failover, but all the guides seem to be about ...
3
votes
2answers
502 views

Heartbeat/DRBD failover didn't work as expected. How do I make the failover more robust?

I had a scenario where a DRBD-heartbeat set up had a failed node but did not failover. What happened was the primary node had locked up, but didn't go down directly (it was inaccessible via ssh or ...
0
votes
2answers
280 views

DRDB and NFS: NFS downtime during failover restoration

I'm pretty new to DRBD and NFS, and am in the process of testing a DRDB server with heartbeat to use for our company's NFS share. The entire setup is running fine, with the NFS state directory ...
1
vote
1answer
370 views

Replacement command for hb_takeover

I recently installed the latest DRBD on Ubuntu 10.04 and would like to issue a one-step command to test failover to demonstrate to the powers that be the simplicity of failing over. In previous ...
2
votes
2answers
937 views

Unexpected start of already-primary server processes when heartbeat on secondary is stopped

I've got an active-passive Heartbeat cluster with Apache, MySQL, ActiveMQ and DRBD. Today, I wanted to perform hardware-maintenance on the secondary node (node04), so I stopped the heartbeat service ...
2
votes
1answer
1k views

DRBD/LVM/Xen Setup not re-syncing/updating

I have a problem with a HA Cluster running on CentOS 5.4 x86_64. Software used: DRBD 8 (kmod-drbd-xen-8.0.16-5.el5_3.x86_64 / drbd-8.0.16-5.el5.centos) Heartbeat LVM2 Xen 3.1.2 My DRBD ...
0
votes
5answers
909 views

MySQL replication using DRBD, distributed lock manager?

I need to implement Linux-HA configuration in two servers. I've decided to use DRBD for block level replication on both hosts, mainly for MySQL data replication. As I understand, in DRBD ...
3
votes
3answers
2k views

Data loss due to MySQL DRBD Heartbeat failover script

Using DRBD version: 8.2.6 (api:88/proto:86-88) Here is the contents of /etc/ha.d/haresources db1 192.168.100.200/24/eth0 drbddisk::mysql Filesystem::/dev/drbd0::/drbd::ext3::defaults mysql ...
2
votes
3answers
2k views

DRBD / Heartbeat on Virtual Machines

Does anyone have experience configuring drbd with heartbeat between 2 virtual linux machines (VMWare Infrastructure)? The problem I am running into is that heartbeat likes multiple data paths to see ...